Type-writing machine.



A, G. F. KUROWSKI. TVYP'E wrmms MACHINE. APRLICAIION FILED NOV. 22,1912.

1,203,633. r Patented Nov. 7, 1916.

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- I ATTOBY INVENTOB: WITNESSES: 4 77 1 the carriage during theletter-feeding operat each letter-feed movement also causes a.

To all whom it may concern:

ALrnEn e. E. xuzaowsxr, o 'n w ronng n. "1., asisrenon r0 unnnnwoonTYPE- wnI'rEE COMPANY, on NEW man, n. m, a conronarron OF DELAWARE.

' 'rYrE-wmrrne macHrnEl- Be it known that I, ALFRED F. KU-

ROWSKI, a citizen of the United States, re-

siding in Brooklyn borough, New York city, and State of New York, haveinvented certain new and useful Improvements in Type-Writing Machines,0f which the following is a specification.

This invention relates to typewriting maation.

Heretofore it has been customary to provide a fixed connection betweenthe machine frame and the usual rubber feet, and when the returningcarriage strikes the-stop at the starting, point of the writingline,-or-

whenever a tabulator stop arrests the carriage,the shock is feltthroughout the ma-' continuous vibration of the machine frame,

which results in rapid and uneven wear of the rubber feet, so that themachine does not rf'emain level or firmly supported on its four eet.

The main object of this invention is to overcome these objections by theprovision of means for absorbin the lateral vibrations to which themachine 1s subjected. For this purpose, shock-absorbing devices areinterposed between the machine frame and the usual rubber feet. Suchdevices may comprise casings connected to the machine frame and openingdownward to receive'blocks to I which the rubber feet are secured,springs being interposed between said blocks and the casing to permitmovement of the machine frame relative to'the feet in. the direction ofo the carriage travel. Roller bearings interposed'between'the feet andmachine, frame to 1 permit lateral movement of the machine'in absorbingvibrations or shocks, may co n prise rollers extending through slots insaid casings an blocks, the weight of the machine being supported onsaid rollers.

Other features and advantages will here inafter appear.-

' Application filed November 22, 1912 Serial No. 732.806.

often with considerable force.

' In the accompanyin drawings, Figure- 1 nderwood typewriter is arearView of an to whlch my improvements-fare applied.

Fig. 2' is a sectional elevation through the foot and theshock-absorber.;Ei1g.- 3.isa

section through Fig. 2 on a line indicated by Fig. 4 is adetail'perspective of the arrows. the various parts of my improvements.The carriage 1 'is drawn as usual by a spring'2 fromright to left stepbysstep upon a track 3 on the machine frame 4. the carria e is returnedto the right for a. new l1ne y means of the line-space lever' (notshown), it is brought against'a stop 5, With the usual mounting of themachine frame, which permits little or no movement of the frame in alateral direction, this sudden stoppage of the carrlage sub ects theentire machine to a shock or ja'r.' The same is true when Specificationof Letters new: Patented Nov. 7,1916.

the carriage is stopped by ,a tabulator stop after. being permitted torun?- forward some distance. To overcome these objections, and also toabsorb the vibrations due to theletter-feed' movement of the carriage,shock absorbers are placed between the main. frame 4: and the feet 6upon which the machine is supported. The main frame l is mounted uponelongated, inverted cup-like casings 7 whose inner'sides formchannels orguidewaysfor blocks 8 attached to the feet 6, said channels extending inthe direction of the carriage travel so that thetypewriter is permittedto give or slide whenever a shock'is received. I g

Whenever the typewriter frame is struck by the carriage as the returnmovement of the carriage is arrested, the machine frame will yieldagainst the resistance of compression springs 9 working between casings7 on the main frame 4 and the blocks 8 attached to the feet 6. Screws 1Oadjustable in the ends of the casings 7 form abutments for the i Isprings 9, whereby the tension of the springs may be adjusted.

The casings 7 move over the blocks 8 upon rollers 11 which extend.through slots 12 in the sides of said casings and blocks the -weight ofthe machine being supported on the rollers. .These rollers will alsoprevent the feet from dropping out of the caslngs when the typewriter israised, and are ke t from slipping through the slots by their wide heads'13 at one-end, and nuts 14 at their other end. The'rubber feet 6 areprotected against being worn or cut by the casings 7, by providing theblocks 8 with As the casings flanges which overlap the side edges of thecasings; Each casing-7 may be attached to the main frame 4 by means of acounter-sunk ,screw' 16, which is easily reached when the screw 17,holding the foot in either direction, the shock-absorbers will workequally. as well if the carriage pro jection 19 strikes a tabulator stop20 during the forward run of the carriagein tabulator work, as when thecarriage is stopped in its return movement.

' As the typewriter can only move laterally over the feet, none of themanifolding power of the type bars, which strike transversely, is lostinthe shock-absorbers v Variations may be resorted to within the scopeof the invention, and portions of the improvements may be used withoutothers.

Having thus described my invention I claim: J

1. In a typewriting machine, the combination with the machine frame andfeet supporting the weight of the frame, of casings attached to theframe, springs in said casings between each casing, and thecorresponding foot adapted to absorb lateral shock, and connectionsbetween said casings and feet whereby lateral movement of the casingswith respect to the feet is permitted, 2. In a typewriting machine, thecombination with the machine frame and feet supporting the weight of theframe, of shock absorbers comprising casings attached to said frame andslidable laterally over said feet, and compression springs in saidcasifngs between said frame and its supporting est.

3. In a typewriting machine, the combi nation with the machine frame andfeet carrying the weight of the frame, of shock absorbers comprisingcasings secured on the frame and slidable laterally over the feet,compression springs between said casings and feet, and means to adjustthe tension on said springs.

4. In a typ'ewriting machine, the combination with a main frame and feetof elastic material to support the machine, of casings fixed to the mainframe, blocks secured to said feet, bearings between said blocks andcasings permitting movement of the frame relative to said blocks in thedirection of the carriage travel and shock reducing c springs betweenthe casings and feet.

5 In a typewriting machine, the combi nation with a machine frame andfeet supporting the weight of the machine, of shock absorbers comprisingblocks fixed'to said feet, casings fixed to the main frame and slidableover said blocks, said blocks and casings provided with slots, rollerbearings extending through said slots for permitting lateral movement ofthe frame on said blocks, and springs opposing said lateral movement. f

6. In atypewriting machine, the combination with the main frame and feetsupporting the weight of the frame, of slots I forminga slidingconnection between said feet and frame, permitting lateral movement oftheframe relative to' the feet in the di= rection ofthe carriage travel,and preventing'relative-movement of the frame and feet in, a forward orrearward direction, and means to" yieldingly oppose said lateralmovement of the frame.

7. In a typewriting machine, the combination with the machine frame, ofrubber feet, blocks secured to said feet, casings secured to the machineframe and elongated in the direction of the carriage travel, saidcasings forming guides and supports for said blocks, and coil springsinterposed between said blocks and the ends of the casin s.

8. In a typeWriting machine, the com ination with the machine frame, ofrubber feet, blocks secured to said feet, casings secured tothe machineframe and elongated in the direction of the carriage travel, saidcasings-forming guides for said blocks, coil springs interposed betweensaid blocks and the ends of thecasings, ,and roller bearings betweensaid blocks and casings permitting said relative movement of the blocksand casings. I v

, 9. In a typewriting machine, the combination of themachine frame,supporting feet therefor, slots and connecting means be-, tween saidfeet and the machine frame adapted to restrict horizontal movement in aforward and rearward direction of said frame relatively to said feet andto permit free lateral movement thereof, and means for cushioning alllaterally exerted vibratory shocks and impulses to .which said frame issubjected.

10. The combination with a typewriting machine, of supporting feettherefor, the machine being mounted for a limited horizontal vibratorymovement relatively to the said feet in one direction, anti-frictionbearings between the said feet and the machine frame arranged to reducethe frictional resistance to such horizontal movement of the machine,and means for cushioning all vibratory shocks and impulses to which themachine frame is subjected in the direction in which it is movablerelatively to the feet.

11. The combination with a typewriting machine comprising a carriagehaving a horizontal travel, of feet supporting the weight of themachine, the machine being mounted for a movement relatively to saidfeet in the direction of the carriage travel,

anti-friction bearings between said feet and the machine frame arrangedto reduce the frictional resistance to said horizontal movement of themachine, and cushioning means yieldingly opposing the movement of themachine relatively to the feet in said horizontal direction, and therebycushioning all vibratory shocks and impulses to which the machine issubjected in the direction of the carriage travel.

12. The combination with a typewriting machine comprising a carriagehaving a horizontal travel, of feet supporting) the weight of themachine, the machine eing mounted for movement relatively to said feetin the direction of the carriage travel, anti-friction bearings betweensaid feet and the machine frame arranged to reduce the frictionalresistance to said horizontal movement of the machine, cushioning meansyieldingly opposing the movement of the machine relatively to the feetin said hori-x zontal direction, and thereby cushioning all vibratoryshocks and impulses to which the machine'is subjected in the directionof the carriage travel, and means to restrict the machine againsthorizontal vibratory movement relatively to said feet in a directiontransverse to the direction of the carriage travel.

opposing said movement of the machine frame relatively to the feet,whereby shocks and vibrations to which the machine is sub jected in thedirection of the carriage travel are cushioned, and means to restrictthe machine frame against horizontal movement relatively to thesupporting feet in a direction transverse to the direction of travel ofthe carriage; 7

ALFRED G. F. KUROWSKI; Witnesses J. A. BRornY, F. E. ALEXANDER.

